Tripwire Interactive Bundle

When the name of your game is Killing Floor and the premise is "kill everything that isn't you," a certain amount of holiday cheer is expected. Developer Tripwire Interactive has announced the return of its Twisted Christmas holiday event, which will add a new level, music, weapons, and achievements to the game for a limited time.

The content is free to all owners of the game will be available from December 7 through January 4. Killing Floor will also be free to play via Steam this weekend, beginning December 8 through December 11.

But, that's not all: "Returning from last year's event we have Christmas themed specimens replacing all of the regular baddies, Santaâs Evil Lair, Christmas themed achievements and the chance for those who missed unlocking the special Baddest Santa character last year to grab him this time around."

This year's event adds the level Ice Cave as well as seven brand new weapons. Another character DLC character pack is also in the works, entitled Steampunk 2, helping users "complete the set" of Steampunk-style characters introduced in previous DLC.

For more information on the content, check out the game's official blog.

Killing Floor is available on Steam, Direct2Drive, and other digital distribution services.

With the scariest holiday on the calendar creeping near, a Hellish handful of vicious video ghouls (games) are hosting Halloween festivities. If you can't find the fishnet stockings needed to complete your Sexy Parking Meter costume, and will be staying, here's a few unspeakable ideas on how to amuse yourself this wicked weekend.

The map Viaduct has become the haunted Eyeaduct, where you'll face the twisted creature the Demoman's eye became, the Monoculus. Defeating it will grant rewards, while you can also find new and fantastic Hallowe'en costumes, buy chilling new Mann Store items, or get a cauldron of goodies just for playing.

Check the TF2 wiki for more, and have a peek at Eyeaduct courtesy of Youtube user Niichts:

Survival shooter Killing Floor is running the Halloween Sideshow, bringing back and spookifying the cast of the Summer Sideshow. The Abusement Park has relocated to the asylum map of Bedlam, where you'll find goblins, were-bunnies, pumpkins, and Dracula baying for your blood.

If you collect all seven new Killing Floor Halloween achievements, you'll unlock a Commander Chicken outfit to wear. Yes, it is a chicken suit.

Rock of Ages has rolled out a Jack-o'-lantern boulder skin for you to pummel your foes with, along with a spooky new title screen.

Zombies have invaded the Oxford-Paddington route, so you'll need to drive a group of survivors, including a mysterious man known as The Professor, to a secret bunker beneath Paddington Station, switching trains and dodging the dastardly undead along the way. Yes. $4.99 will get you four scenarios with zombies, witches, and flying trains.

A special 'Steam Digital Deluxe Edition' of Tripwire's PC WW2 shooter sim Red Orchestra 2: Heroes of Stalingrad has been unveiled, packing bonuses including beta access, new playable characters for Tripwire's Killing Floor, and new Team Fortress 2 hats. Pre-orders are now open for both the standard and special Steam editions, with a nifty discount.

Red Orchestra 2

The Steam Digital Deluxe Edition, naturally available only through Steam, costs $10 more than the regular game. It will grant you access to the last stage of the pre-release beta test, along with day-1 unlocks of two elite assault weapons and a pair of semi-auto sniper weapons when the game launches. And then there's the bonuses for other games.

In TF2, you'll get a German helmet and Russian "Pilotka" hat to wear. And while the Killing Floor playable characters you also get appear to be anachronistic Russian and German soldiers, they are, in fact, WW2 re-enactors. Well played, Tripwire.

The regular and Steam Digital Deluxe editions can now be pre-ordered from Steam with a 10% discount. This brings it to $35.99 for the plain-o version and $44.99 for the fancy one.

What's more, if you own the original Red Orchestra: Ostfront 41-45 on Steam, the pre-order discount is bumped up to 20% off. You'll also score wearable Russian Guards and German Close Combat badges, and instant unlocks of the Kar98 and Mosin rifle bayonets.

The Summer Sideshow will bring free new content including a macabre map set in a funfair, the Abusement Park. You'll find it populated by freakish versions of the classic Killing Floor enemies, such as the Two-Headed Girl, the Bearded Lady, the Incredible Monkey Man, and the Fleshclown.

There'll also be special Steampunk player skins, so you can join in the Victorian weirdo fun yourself. Steampunk Mr Foster will be unlocked as a reward for collecting ten of the update's thirteen new achievements. If you want to give Tripwire money for its splendid ongoing support of Killing Floor, there'll be a new steampunk DLC character pack; previous packs have cost $2.

A new map, Santa's Evil Lair, will overflow with special yuletide versions of Killing Floor's genetic monstrosities, from gingerbread men and elves to Jack Frost and Big S himself. There'll also be also new achievements and an unlockable 'Baddest Santa' player skin.

On top of all that, players who also own Team Fortress 2 will be able to play as the Pyro in Killing Floor and score a 'Mr Fosters Gasmask and Tie' item to wear back in TF2.

The Twisted Christmas event will kick off on December 14, running until January 4.